c++ - 求教各位大神关于VS2010与c-free，putchar函数与puts函数的问题

Question

代码如下

#include<stdio.h>

int main(void)
{
    putchar('\0');
    return 0;
}

求教各位大神，为什么结果会那么奇怪？我私下试过了,为什么putchar('0')会显示a呢？就这一点很奇怪，其他的都正常，请问大神，难道是我的运行库出问题了？本人小白，研究了2天都没想明白，求高人

Answer 1

It should be a problem with your environment. I tested it on dev c++ and it worked fine

Answer 2

I have no problem in my compiler (gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4)). Is the code in your screenshot putchar('0'); or putchar("0") ;?

Answer 3

putchar outputs a character, puts outputs a string, encounter

The parameter in putchar must use single quotes '0'. If you use double quotes "0", the compiler will randomly output a character